This is a set of a USB serial conversion cable (BSUSRC06 1m) and a 2m serial cable. I used them with CISCO Catalyst network switches and YAMAHA routers, but I am selling them because I sold the equipment. Unlike regular mail, this is an anonymous and trackable delivery service. The listed price includes the following (shipping costs are covered by the seller), so please rest assured: Mercari system fee: 10% Nekopos shipping fee: 210 yen ● Reference https://www.buffalo.jp/product/detail/bsusrc0610bs.html